CN110667559A - Ground steering device of air cushion type landing system and control method thereof - Google Patents
Ground steering device of air cushion type landing system and control method thereof Download PDFInfo
- Publication number
- CN110667559A CN110667559A CN201910791579.0A CN201910791579A CN110667559A CN 110667559 A CN110667559 A CN 110667559A CN 201910791579 A CN201910791579 A CN 201910791579A CN 110667559 A CN110667559 A CN 110667559A
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- Prior art keywords
- air cushion
- landing gear
- airplane
- air
- cushion type
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- 238000000034 method Methods 0.000 title claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 230000001050 lubricating effect Effects 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60V—AIR-CUSHION VEHICLES
- B60V3/00—Land vehicles, waterborne vessels, or aircraft, adapted or modified to travel on air cushions
- B60V3/08—Aircraft, e.g. air-cushion alighting-gear therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/02—Undercarriages
- B64C25/08—Undercarriages non-fixed, e.g. jettisonable
- B64C25/10—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like
- B64C25/18—Operating mechanisms
- B64C25/22—Operating mechanisms fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface
- B64C25/34—Alighting gear characterised by elements which contact the ground or similar surface wheeled type, e.g. multi-wheeled bogies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface
- B64C25/50—Steerable undercarriages; Shimmy-damping
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Retarders (AREA)
Abstract
The invention provides a ground steering device of an air cushion type landing gear system and a control method thereof. The retractable undercarriage with the steering mechanism comprises an unlocking actuating cylinder, a retractable actuating cylinder, a piston rod, an undercarriage outer cylinder, a steering mechanism, a torsion arm and an airplane wheel; the bottom of the air cushion type landing system is provided with a supporting plate, an outer cylinder of the landing gear is connected with the bottom of the supporting plate of the air cushion type landing system through an unlocking actuating cylinder and a retracting actuating cylinder, an airplane wheel structure is connected below the outer cylinder of the landing gear sequentially through a steering mechanism and a piston rod, and the steering mechanism is connected with the airplane wheel structure through a torsion arm. The air cushion type landing system replaces the traditional wheel type landing gear, reduces the overall quality of the airplane, lowers the requirements on the taking-off and landing site, greatly expands the taking-off and landing environment of the fixed wing airplane and solves the problem of poor operation performance of the traditional air cushion type landing system.
Description
Technical Field
The invention relates to the field of air cushion type landing systems, in particular to a ground steering device of an air cushion type landing system and a control method thereof.
Background
The amphibious take-off and landing aircraft is a hotspot of controversial research in various countries, and the air cushion landing gear is one of landing gears for realizing amphibious take-off and landing, can adapt to various complicated take-off and landing terrains, and greatly expands the take-off and landing environment of fixed wing airplanes.
The airbed landing gear was developed in the last 70 th century. The air cushion is characterized in that an annular elastic air cushion body with holes is arranged at the bottom of an airplane body, when the bag pressure in the air cushion body is increased, the internal air is discharged from an exhaust hole, and when the air is filled in a cavity formed by the annular air cushion body and the ground, the air overflows from the cavity, so that an air lubricating layer is formed between the air cushion body and the ground. When the airplane flies, the air in the air cushion body is pumped away and is tightly adsorbed on the airplane body. When the air cushion body is filled with gas, the elastic material extends outwards to form a slender air bag protruding out of the bottom of the airplane, and when the airplane lands, the purpose of buffering is achieved by pressure relief and energy consumption through compression deformation of the air cushion body and air leakage of the exhaust hole.
Hovercraft is an important component of amphibious aircraft design. The ground handling performance of the hoverboard system is one of the key technologies of the hoverboard system. Most of the existing airplane types adopt a rear propeller air rudder, and the problem of the form is that a rectifying support arm needs to be installed, so that the weight of the airplane is increased, and the pneumatic performance of the whole airplane is poor.
At present, the research on the air cushion landing gear abroad is still in the exploration stage, the scheme design on the air cushion landing gear at home is still in the blank, the patent provides a design scheme for the air cushion landing gear, and provides a scheme for the air cushion landing gear and the course control mode of the air cushion landing gear.
Disclosure of Invention
The invention provides a ground steering device of an air cushion landing system and a control method thereof for solving the problems in the prior art, which controls the course of an airplane of the air cushion landing system during the sliding, expands the prior scheme, improves the functions and solves the problem of course control of the air cushion landing system during the sliding.
The invention provides a ground steering device of an air cushion type landing system, which comprises the air cushion type landing system and a retractable landing gear with a steering mechanism.
The air cushion type lifting system comprises a fan, a pressurizing chamber exhaust hole, an air cushion body and an air cushion body exhaust hole, wherein the upper wall of the pressurizing chamber is fixedly connected with the machine body, and the air cushion body semi-surrounds the side wall and the bottom of the pressurizing chamber; the upper wall of the pressurizing chamber is connected with a fan, and the lower wall of the pressurizing chamber is provided with a pressurizing chamber exhaust hole; the bottom of the air cushion body is provided with an air cushion body exhaust hole.
The retractable undercarriage with the steering mechanism comprises an unlocking actuating cylinder, a retractable actuating cylinder, a piston rod, an undercarriage outer cylinder, a steering mechanism, a torsion arm and an airplane wheel structure; the bottom of the air cushion type landing gear system is provided with a supporting plate, an outer cylinder of the landing gear, an unlocking actuating cylinder and a retraction actuating cylinder are respectively connected with the bottom of the supporting plate of the air cushion type landing gear system, and the unlocking actuating cylinder and the retraction actuating cylinder control the retraction of the outer cylinder of the landing gear; the lower part of the outer cylinder of the landing gear is connected with an airplane wheel structure through a steering mechanism and a piston rod in sequence, and the steering mechanism is connected with the airplane wheel structure through a torsion arm. Retractable landing gear with steering mechanisms may also use existing retractable landing gear.
The single plenum vent is circular in shape. The distribution pattern of the plurality of pumping chamber vent holes is symmetrical.
The shape of the single gas injection hole is circular. The distribution form of the plurality of gas injection holes is symmetrical.
The landing gear outer cylinder is further improved, and is connected with the bottom of a supporting plate of the air cushion type landing system through a supporting rod, and a lower lock is arranged on the supporting rod.
The invention also provides a control method of the ground steering device of the air cushion type landing system, which comprises the following steps: when the airplane runs, the fan starts to work, airflow generated by the fan flows into the air cushion body through the exhaust holes of the pressurizing chamber, the pressure in the air cushion body is increased, the air is exhausted from the air injection holes, and when the air is filled in a cavity formed by the annular air cushion body and the ground, the air overflows from the cavity, so that an air lubricating layer is formed between the air cushion body and the ground, lifting is achieved, the undercarriage is put down, and steering of the airplane is achieved by controlling deflection of the airplane wheels. After the airplane takes off, the landing gear is retracted and placed at the bottom of the supporting rod of the air cushion landing gear system.
The invention has the beneficial effects that:
1. the air cushion landing gear system replaces the traditional wheel type landing gear, and the overall mass of the airplane is reduced.
2. The air cushion type landing system replaces the traditional wheel type landing gear, reduces the requirements on the take-off and landing site, and greatly expands the take-off and landing environment of the fixed wing aircraft.
3. The problem of traditional air cushion type system that rises and falls the maneuverability poor is solved.
Drawings
Fig. 1 is a full machine diagram of the present invention.
Figure 2 is a view of the landing gear attachment of the present invention.
Figure 3 is a block diagram of the air cushion landing gear system of the present invention.
FIG. 4 is a bubble surface view of the air cushion landing gear system of the present invention.
FIG. 5 is a schematic view of an air bearing body structure.
1. A propeller; 2. an air cushion landing system; 3. a landing gear; 4. the bottom of the support plate of the air cushion type landing system; 5. an unlocking actuator cylinder; 6. retracting and releasing the actuating cylinder; 7. a piston rod; 8. a lower lock; 9. an outer landing gear barrel; 10 a steering mechanism; 11. a torsion arm; 12 a wheel structure; 13 a brace rod; 14 an air cushion body; 15. an air cushion body support plate 16, a plenum chamber; 17. a fan; 18 plenum vent holes; 19. and an air cushion body exhaust hole.
Detailed Description
The invention will be further explained with reference to the drawings.
The invention provides a ground steering device of an air cushion type landing gear system, which is structurally shown in figure 1 and comprises the air cushion type landing gear system and a retractable landing gear with a steering mechanism.
The air cushion landing system is shown in fig. 3 and 4, and comprises a fan 17, a plenum chamber 16, a plenum chamber exhaust hole 18, an air cushion body 14 and an air cushion body exhaust hole 19, wherein the upper wall of the plenum chamber 16 is fixedly connected with the fuselage, and the air cushion body half 14 surrounds the side wall and the bottom of the plenum chamber 16; the upper wall of the pressurizing chamber 16 is connected with a fan 17, and the lower wall of the pressurizing chamber is provided with a pressurizing chamber exhaust hole 18; the bottom of the air cushion body is provided with an air cushion body exhaust hole 19, as shown in fig. 5.
The retractable undercarriage with the steering mechanism is shown in fig. 2 and comprises an unlocking actuating cylinder 5, a retractable actuating cylinder 6, a piston rod 7, an undercarriage outer cylinder 9, a steering mechanism 10, a torsion arm 11 and an airplane wheel structure 12; the bottom of the air cushion type landing system is provided with a supporting plate 4, an outer cylinder 9 of the landing gear, an unlocking actuating cylinder 5 and a retraction actuating cylinder 6 are respectively connected with the bottom of the supporting plate 4 of the air cushion type landing system, and the unlocking actuating cylinder 5 and the retraction actuating cylinder 6 control the outer cylinder 9 of the landing gear to retract; a wheel structure 12 is connected below the landing gear outer cylinder 9 through a steering mechanism 10 and a piston rod 7 in sequence, and the steering mechanism 10 is connected with the wheel structure 12 through a torsion arm 11.
The single plenum vent is circular in shape. The distribution pattern of the plurality of pumping chamber vent holes is symmetrical.
The shape of the single gas injection hole is circular. The distribution form of the plurality of gas injection holes is symmetrical.
The outer cylinder 9 of the landing gear is also connected with the bottom of a supporting plate 4 of the air cushion type lifting system through a supporting rod 13, and a lower lock 8 is arranged on the supporting rod 13.
The invention also provides a control method of the ground steering device of the air cushion type landing system, which comprises the following steps: when the airplane runs, the fan starts to work, airflow generated by the fan flows into the air cushion body through the exhaust holes of the pressurizing chamber, the pressure in the air cushion body is increased, the air is exhausted from the air injection holes, and when the air is filled in a cavity formed by the annular air cushion body and the ground, the air overflows from the cavity, so that an air lubricating layer is formed between the air cushion body and the ground, lifting is achieved, the undercarriage is put down, and steering of the airplane is achieved by controlling deflection of the airplane wheels. After the airplane takes off, the landing gear is retracted and placed at the bottom of the supporting rod of the air cushion landing gear system.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only illustrative of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A ground steering device of an air cushion type landing system is characterized in that: comprises an air cushion type landing gear system and a retractable landing gear with a steering mechanism;
the air cushion type lifting system comprises a fan, a pressurizing chamber exhaust hole, an air cushion body and an air cushion body exhaust hole, wherein the upper wall of the pressurizing chamber is fixedly connected with the machine body, and the air cushion body semi-surrounds the side wall and the bottom of the pressurizing chamber; the upper wall of the pressurizing chamber is connected with a fan, and the lower wall of the pressurizing chamber is provided with a pressurizing chamber exhaust hole; the bottom of the air cushion body is provided with an air cushion body exhaust hole;
the retractable undercarriage with the steering mechanism comprises an unlocking actuating cylinder, a retractable actuating cylinder, a piston rod, an undercarriage outer cylinder, a steering mechanism, a torsion arm and an airplane wheel structure; the bottom of the air cushion type landing gear system is provided with a supporting plate, an outer cylinder of the landing gear, an unlocking actuating cylinder and a retraction actuating cylinder are respectively connected with the bottom of the supporting plate of the air cushion type landing gear system, and the unlocking actuating cylinder and the retraction actuating cylinder control the retraction of the outer cylinder of the landing gear; the lower part of the outer cylinder of the landing gear is connected with an airplane wheel structure through a steering mechanism and a piston rod in sequence, and the steering mechanism is connected with the airplane wheel structure through a torsion arm.
2. The hovership ground steering device according to claim 1, wherein: the single plenum vent is circular in shape.
3. The hovership ground steering device according to claim 1, wherein: the distribution pattern of the plurality of pumping chamber vent holes is symmetrical.
4. The hovership ground steering device according to claim 1, wherein: the shape of the single gas injection hole is circular.
5. The hovership ground steering device according to claim 1, wherein: the distribution form of the plurality of gas injection holes is symmetrical.
6. The hovership ground steering device according to claim 1, wherein: the outer cylinder of the landing gear is also connected with the bottom of a supporting plate of the air cushion type lifting system through a supporting rod, and a lower lock is arranged on the supporting rod.
7. A control method of a ground steering device of an air cushion type landing system is characterized by comprising the following steps: when the airplane runs, the fan starts to work, airflow generated by the fan flows into the air cushion body through the pressurizing chamber exhaust hole, the pressure in the air cushion body is increased, the air is exhausted through the air injection hole, when the air is filled with a cavity formed by the annular air cushion body and the ground, the air overflows from the cavity, an air lubricating layer is formed between the air cushion body and the ground, lifting is achieved, the undercarriage is put down, steering of the airplane is achieved through deflection of the airplane wheel, and after the airplane takes off, the undercarriage is folded and placed at the bottom of the supporting rod of the air cushion type landing system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910791579.0A CN110667559A (en) | 2019-08-26 | 2019-08-26 | Ground steering device of air cushion type landing system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910791579.0A CN110667559A (en) | 2019-08-26 | 2019-08-26 | Ground steering device of air cushion type landing system and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110667559A true CN110667559A (en) | 2020-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910791579.0A Pending CN110667559A (en) | 2019-08-26 | 2019-08-26 | Ground steering device of air cushion type landing system and control method thereof |
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| Country | Link |
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| CN (1) | CN110667559A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101208241A (en) * | 2005-06-28 | 2008-06-25 | 空中客车法国公司 | Compact steering device for the landing gear of an aircraft |
| CN101519120A (en) * | 2009-04-07 | 2009-09-02 | 南京航空航天大学 | Semi-active shimmy damper of undercarriage and control method thereof |
| CN101870358A (en) * | 2010-06-23 | 2010-10-27 | 南京航空航天大学 | Toggle type nose wheel steering mechanism and work method |
| CN102020014A (en) * | 2010-12-09 | 2011-04-20 | 南京航空航天大学 | Airplane landing gear with deflected airplane wheel retraction jack |
| CN103407444A (en) * | 2013-08-05 | 2013-11-27 | 北京理工大学 | Hover take-off and landing technology based fixed-wing aircraft |
| CN105235677A (en) * | 2015-10-14 | 2016-01-13 | 江门飞鲸科技实业有限公司 | Hovercraft using distributed duct fans |
| CN108248857A (en) * | 2017-12-15 | 2018-07-06 | 中国特种飞行器研究所 | A kind of novel amphibious three use air-cushion type ground effect ship |
-
2019
- 2019-08-26 CN CN201910791579.0A patent/CN110667559A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101208241A (en) * | 2005-06-28 | 2008-06-25 | 空中客车法国公司 | Compact steering device for the landing gear of an aircraft |
| CN101519120A (en) * | 2009-04-07 | 2009-09-02 | 南京航空航天大学 | Semi-active shimmy damper of undercarriage and control method thereof |
| CN101870358A (en) * | 2010-06-23 | 2010-10-27 | 南京航空航天大学 | Toggle type nose wheel steering mechanism and work method |
| CN102020014A (en) * | 2010-12-09 | 2011-04-20 | 南京航空航天大学 | Airplane landing gear with deflected airplane wheel retraction jack |
| CN103407444A (en) * | 2013-08-05 | 2013-11-27 | 北京理工大学 | Hover take-off and landing technology based fixed-wing aircraft |
| CN105235677A (en) * | 2015-10-14 | 2016-01-13 | 江门飞鲸科技实业有限公司 | Hovercraft using distributed duct fans |
| CN108248857A (en) * | 2017-12-15 | 2018-07-06 | 中国特种飞行器研究所 | A kind of novel amphibious three use air-cushion type ground effect ship |
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